ANNAPOLIS, Md. (Feb. 15, 2023) Security forces personnel respond to a simulated threat during an active shooter training exercise held at Naval Health Center Annapolis. The training exercise was completed as part of Citadel Shield-Solid Curtain, which is an annual anti-terrorism and force protection exercise designed to challenge the response and capabilities of Navy security forces. (U.S. Navy photo by Mass Communication Specialist 2nd Class Sarah M. Thielen)